#include <bits/stdc++.h>
#define vi vector<int>
#define ve vector
#define ll long long
#define vf vector<float>
#define vll vector<pair<ll,ll>>
#define ii pair<int,int>
#define pll pair<ll,ll>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 2e9+5
#define eps 1e-7
#define eps1 1e-25
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 1e5+5
#define V 450
using namespace std;
const int MOD = 1e9;
const int nax = 1e5+5;
int st[nax*4];
vii rngs;
void update(int v, int l, int r, int pos, int val){
if(r < pos || l > pos) return;
if(l == r){
st[v] += val;
return;
}
int md = (l+r)/2;
update(v*2,l,md,pos,val);
update(v*2+1,md+1,r,pos,val);
st[v] = st[v*2] +st[v*2+1];
}
int query(int v, int l, int r, int i, int j){
if(r < i || l > j) return 0;
if(i <= l && r <= j) return st[v];
int md = (l+r)/2;
return query(v*2,l,md,i,j) + query(v*2+1,md+1,r,i,j);
}
int GetBestPosition(int n, int c, int r, int *k, int *s, int *e) {
for (int i = 0; i < c; ++i)
{
rngs.pb({s[i]+query(1,0,n-1,0, s[i]-1),e[i]+query(1,0,n-1,0, s[i]-1)+query(1,0,n-1,s[i], e[i])});
update(1,0,n-1,s[i], e[i]-s[i]);
}
int mx = 0, ps = 0;
for (int i = 0; i < n; ++i)
{
int res = 0, ind = i;
for (int j = 0; j < c; ++j)
{
if(rngs[j].fi <= i && i <= rngs[j].se){
int cur =0;
for (int ar = rngs[j].fi; ar < rngs[j].se; ++ar)
{
cur = max(cur, k[ar]);
}
if(cur < r)
res++;
else break;
}
}
if(res > mx){
mx = res;
ps = i;
}
}
return ps;
}
int main() {
optimise;
#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int n,c,r;
cin >> n >> c >> r;
int k[n],s[c],e[c];
for (int i = 0; i < n-1; ++i)
{
cin >> k[i];
}
for (int i = 0; i < c; ++i)
{
cin >> s[i] >> e[i];
}
cout << GetBestPosition(n,c,r,k,s,e) << endl;
}
Compilation message
advisor.cpp: In function 'int GetBestPosition(int, int, int, int*, int*, int*)':
advisor.cpp:53:16: warning: unused variable 'ind' [-Wunused-variable]
53 | int res = 0, ind = i;
| ^~~
advisor.cpp: In function 'int main()':
advisor.cpp:78:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
78 | freopen("input.txt", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
advisor.cpp:79:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
79 | freopen("output.txt", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccTcjGAK.o: in function `main':
advisor.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cci8AF9I.o:advisor_grader.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cci8AF9I.o: in function `main':
advisor_grader.cpp:(.text.startup+0xe6): undefined reference to `ComputeAdvice(int*, int, int, int)'
collect2: error: ld returned 1 exit status
/usr/bin/ld: /tmp/ccd1PR4t.o: in function `main':
assistant_grader.cpp:(.text.startup+0x21e): undefined reference to `Assist(unsigned char*, int, int, int)'
collect2: error: ld returned 1 exit status
